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For improving the energy efficiency of railway systems, onboard energy storage devices (OESDs) have been applied to assist the traction and recover the regenerative energy. This article aims to address the optimal sizing problem of OESDs to minimize the catenary energy consumption for practical train operations. By employing a …
On-board energy storage devices (OESD) and energy-efficient train timetabling (EETT) are considered two effective ways to improve the usage rate of regenerative braking energy (RBE) of subway trains. EETT is less costly but has lower ceilings, whereas OESD, although expensive, maximizes the reuse of RBE.
The presence of two different storage devices, together with a stationary supply, allows for a more versatile EMS. On electrified sections, the storage devices contribute to accelerations and high load …
Train Vehicle with On-board Energy Storage Device Chaoxian Wu 1, Shaofeng Lu, Fei Xue, Lin Jiang 2 and Jie Yang 3 Abstract With the increasing application of railway trans- portation, energy ...
Abstract. On-board energy storage devices (OESD) and energy-efficient train timetabling (EETT) are considered two effective ways to improve the usage rate of regenerative braking energy (RBE) of subway trains. EETT is less costly but has lower ceilings, whereas OESD, although expensive, maximizes the reuse of RBE.
Therefore, the application of energy storage devices, such as on-board energy storage devices (OESDs) and substation-based energy storage devices, are becoming popular in recent years [4], [5]. When more integrated systems within which each subsystem is
The necessity of considering the energy consumption of the entire system, and not only parts of it, is indicated by articles [5][6][7][8]. The proposals described so far concern, however, either ...
Storage technologies devices are very interesting solutions for improving energy saving and guaranteeing contemporaneously to enhance the electrical characteristics of Light Rail Transit (LRT) systems. Onboard Energy Storage System based on Lithium Ion Capacitor (LiC) devices represent a viable engineering solution for energy saving optimization. The …
Energy storage is the capturing and holding of energy in reserve for later use. Energy storage solutions for electricity generation include pumped-hydro storage, batteries, flywheels, compressed-air energy storage, hydrogen storage and thermal energy storage components. The ability to store energy can reduce the environmental …
Fig. 13. Comparison of the speed trajectories with different Cdeg . - "Train Speed Trajectory Optimization With On-Board Energy Storage Device" DOI: 10.1109/TITS.2018.2881156 Corpus ID: 116609697 Train Speed Trajectory Optimization With On-Board Energy
Two results with and without on-board energy storage device are compared. These optimized results indicate that the total energy consumption is reduced by at least 0.35% by using the EDLC.
This article aims to develop the optimal driving strategy of electric trains with three popular types of energy storage devices, namely supercapacitors, flywheels, …
One of the key components of a hybrid electric vehicle (HEV) drive train is its secondary energy storage device. The automotive industry is still in the process of debating on the fact, as to which device provides the best option in HEVs, for the purpose of load leveling. This paper aims at providing a fair idea with regards to the selection of …
This article proposes a novel two-step approach to concurrently optimize the train operation, timetable, and energy management strategy of the onboard energy storage device (OESD) to minimize the net energy consumption for a whole urban railway line. In Step 1, approximating functions representing the minimum net energy consumption of each …
This paper presents the optimal train operation that minimizes sum of supplied energy from substations. It describes how in recent years, the energy storage devices have had enough energy and power density to use in trains as on-board energy storage. The electric double layer capacitor (EDLC) is assumed as an energy storage …
Additionally, in the case with on-board ESD, more than 11.6% of net energy consumption can be reduced compared with the one without on-board ESD. This paper indicates that the proposed method is an effective and robust way to study how on-board ESD influences optimal train operation as well as to achieve optimal train speed trajectory with on-board …
1 Introduction In recent years, the energy storage devices have enough energy and power density to use in trains as on-board energy storage. The devices are for instance, a secondary battery and an Electric Double Layer Capacitor (EDLC). Above all, the EDLC has
Optimal Sizing of On-Board Energy Storage Devices for Electrified Railway Systems. Chaoxian Wu, Shaofeng Lu*, Fei Xue, Lin Jiang and Minwu Chen. SDs) have been …
Regenerative energy, generated by the braking train, is considered to store into its individual on-board energy storage devices and provided for the follow-up traction operations. Some parameters, including the comfort criterion and increased train mass due to the installation of energy storage devices, are all taken into account in the energy …
Two results with and without on-board energy storage device are compared. These optimized results indicate that the total energy consumption is reduced by at least 0.35% by using the EDLC.
Request PDF | On Oct 28, 2018, Chaoxian Wu and others published Train Speed Trajectory Optimization with On-board Energy Storage Device | Find, read and cite all the research you need on ...
Two results with and without on-board energy storage device are compared. These optimized results indicate that the total energy consumption is reduced by at least 0.35% by using the EDLC. The relation between internal resistance and energy consumption is …
Self-charging electrochromic energy storage devices have the characteristics of energy storage, energy visualization and energy self-recovery and have attracted extensive attention in recent years. However, due to the low self-charging rate and poor environmental compatibility, it is a great challenge to realize the practical application …
On‐board energy storage devices (OESD) and energy‐efficient train timetabling (EETT) are considered two effective ways to improve the usage rate of regenerative braking energy (RBE) of …
The redox flow battery (RFB) is an electrochemical energy-storage device that provides electrical energy using two active materials in liquid form. The two …
This paper investigates the benefits of using the on-board energy storage devices (OESD) and wayside energy storage devices (WESD) in light rail transportation (metro and tram) systems. The analysed benefits are the use of OESD and WESD as a source of supply in an emergency metro scenario to safely evacuate the passengers …
Energy storage has the potential to reduce the fuel consumption of ships by loading the engine (s) more efficiently. The exact effect of on-board energy storage …
Figure 18. The net energy consumption and energy-saving rate for cases 2–8. - "Impact of On-Board Hybrid Energy Storage Devices on Energy-Saving Operation for Electric Trains in DC Railway Systems" DOI: …
3.2 Cycle efficiency Cycle efficiency, also known as round-trip efficiency, is the ratio of the output electrical energy to the input electrical energy as a percentage during a full charge/discharge cycle. Therefore, it is a key indicator of energy efficiency. According to [], the cycle efficiency of ESSes can be classified into three levels: very high efficiency …
1 Train Speed Trajectory Optimization with On-board Energy Storage Device Chaoxian Wu1, student Member, IEEE, Wenrui Zhang 2, Shaofeng Lu, Member, IEEE, Zhaoxiang Tan 2, Fei Xue and Jie Yang3 ...
Table 1. Summary of the relevant studies on the modeling methods. - "Impact of On-Board Hybrid Energy Storage Devices on Energy-Saving Operation for Electric Trains in DC Railway Systems" DOI: 10.3390/batteries8100167 Corpus ID: 252827873 Impact of On ...
Abstract. Energy-efficient train driving strategy is an effective way to reduce the energy consumption of train operations. Based on the classic energy-efficient driving strategy approach, this paper studies the influence of the on-board energy storage on the optimal train driving strategy. Firstly, this paper applies the dynamic programming ...
Abstract Read online Abstract On‐board energy storage devices (OESD) and energy‐efficient train timetabling (EETT) are considered two effective ways to improve the usage rate of regenerative braking energy (RBE) …
This paper presents an analysis on using an on-board energy storage device (ESD) for enhancing braking energy re-use in electrified railway transportation. Simulation results for a train with no ...
Considering both dwelling at stations and running in the inter-station sections, the paper proposes an integrated optimization model for reducing net energy consumption from the …
From a system-level perspective, the integration of alternative energy sources on board rail vehicles has become a popular solution among rolling stock …
To improve the energy-efficiency of transport systems, it is necessary to investigate electric trains with on-board hybrid energy storage devices (HESDs), which …
Extensive research has been performed to increase the capacitance and cyclic performance. Among various types of batteries, the commercialized batteries are lithium-ion batteries, sodium-sulfur batteries, lead-acid batteries, flow batteries and supercapacitors. As we will be dealing with hybrid conducting polymer applicable for the …
This paper presents an analysis on using an on-board energy storage device (ESD) for enhancing braking energy re-use in electrified railway transportation. A simulation model was developed in …
Insights into the Design and Manufacturing of On-Chip Electrochemical Energy Storage Devices With the general trend of miniaturization of electronic devices especially for the Internet of Things (IoT) and implantable medical applications, there is a growing demand for reliable on-chip energy and power sources.
DOI: 10.1016/j.cie.2018.09.024 Corpus ID: 53779331 Train speed profile optimization with on-board energy storage devices: A dynamic programming based approach @article{Huang2018TrainSP, title={Train speed profile optimization with on-board energy storage devices: A dynamic programming based approach}, author={Yeran Huang and …
With the rapid progress in railway electrification and energy storage technologies, onboard energy storage devices (OESDs) have been widely utilized in modern railway systems to reduce energy consumption. This article aims to develop the optimal driving strategy of electric trains with three popular types of energy storage …
1 Train Speed Trajectory Optimization with On-board Energy Storage Device Chaoxian Wu 1, student Member, IEEE, Wenrui Zhang1, Shaofeng Lu, Member, IEEE, Zhaoxiang Tan 1, Fei Xue and Jie Yang2 ...
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